U.S. patent application number 14/437074 was filed with the patent office on 2016-11-17 for color filter substrate and manufacturing method thereof, organic electroluminescent display panel and display device.
The applicant listed for this patent is BOE TECHOLOGY GROUP CO., LTD.. Invention is credited to Kun CAO, Dongfang WANG, Junran WANG, Changyen WU, Guangcai YUAN.
Application Number | 20160334553 14/437074 |
Document ID | / |
Family ID | 51369651 |
Filed Date | 2016-11-17 |
United States Patent
Application |
20160334553 |
Kind Code |
A1 |
WU; Changyen ; et
al. |
November 17, 2016 |
COLOR FILTER SUBSTRATE AND MANUFACTURING METHOD THEREOF, ORGANIC
ELECTROLUMINESCENT DISPLAY PANEL AND DISPLAY DEVICE
Abstract
The present invention provides a color filter substrate and a
manufacturing method thereof, an organic electroluminescent display
panel and a display device. The color filter substrate of the
present invention comprises a first base, and a plurality of color
filters and black matrixes arranged on the first base, wherein two
adjacent color filters are at least partially overlapped, and each
black matrix is at least partially arranged at the overlapped
position of the two adjacent color filters; and the color filter
substrate further comprises a first adhesive layer for eliminating
section differences between the adjacent color filters or between
the color filters and the black matrixes, and the first adhesive
layer is provided with scattering particles therein. The color
filter substrate can be used in the organic electroluminescent
display panel.
Inventors: |
WU; Changyen; (Beijing,
CN) ; WANG; Junran; (Beijing, CN) ; CAO;
Kun; (Beijing, CN) ; WANG; Dongfang; (Beijing,
CN) ; YUAN; Guangcai; (Beijing, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
BOE TECHOLOGY GROUP CO., LTD. |
Beijing |
|
CN |
|
|
Family ID: |
51369651 |
Appl. No.: |
14/437074 |
Filed: |
September 25, 2014 |
PCT Filed: |
September 25, 2014 |
PCT NO: |
PCT/CN2014/087384 |
371 Date: |
April 20, 2015 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
G02B 5/201 20130101;
H01L 51/5284 20130101; H05B 33/04 20130101; G02B 5/20 20130101;
H01L 21/77 20130101; H01L 27/322 20130101; G02F 1/1335 20130101;
H05B 33/10 20130101; H01L 27/32 20130101 |
International
Class: |
G02B 5/20 20060101
G02B005/20; H05B 33/10 20060101 H05B033/10; H05B 33/04 20060101
H05B033/04 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 23, 2014 |
CN |
201410165881.2 |
Claims
1-17. (canceled)
18. A color filter substrate, comprising a first base, and a
plurality of color filters and black matrixes arranged on the first
base, wherein two adjacent color filters are at least partially
overlapped, and each black matrix is at least partially arranged at
the overlapped position of the two adjacent color filters; and
wherein the color filter substrate further comprises a first
adhesive layer for eliminating section differences between the
adjacent color filters or between the color filters and the black
matrixes, and the first adhesive layer is provided with scattering
particles therein.
19. The color filter substrate of claim 18, wherein the black
matrixes are arranged on the first base, and the overlapped part of
the two adjacent color filters is above the black matrix.
20. The color filter substrate of claim 18, wherein the color
filters are arranged on the first base, and each black matrix is
arranged above the overlapped part of the two adjacent color
filters.
21. The color filter substrate of claim 18, wherein the scattering
particles have material including any one or more of silicon oxide,
zinc sulfide and zinc selenide.
22. The color filter substrate of claim 18, wherein the first
adhesive layer is also provided with water absorbing particles
therein.
23. The color filter substrate of claim 22, wherein the water
absorbing particles have material including barium oxide or
magnesium oxide.
24. An organic electroluminescent display panel, comprising a color
filter substrate, and an array substrate which is cell-aligned with
the color filter substrate, wherein the color filter substrate,
comprising a first base, and a plurality of color filters and black
matrixes arranged on the first base, wherein two adjacent color
filters are at least partially overlapped, and each black matrix is
at least partially arranged at the overlapped position of the two
adjacent color filters; and wherein the color filter substrate
further comprises a first adhesive layer for eliminating section
differences between the adjacent color filters or between the color
filters and the black matrixes, and the first adhesive layer is
provided with scattering particles therein.
25. The color filter substrate of claim 24, wherein the black
matrixes are arranged on the first base, and the overlapped part of
the two adjacent color filters is above the black matrix.
26. The color filter substrate of claim 24, wherein the color
filters are arranged on the first base, and each black matrix is
arranged above the overlapped part of the two adjacent color
filters.
27. The color filter substrate of claim 24, wherein the scattering
particles have material including any one or more of silicon oxide,
zinc sulfide and zinc selenide.
28. The organic electroluminescent display panel of claim 24,
wherein the array substrate comprises a second base and a plurality
of pixel units arranged on the second base, each pixel unit
comprises a plurality of organic electroluminescent devices, and
the adjacent organic electroluminescent display devices are
isolated from each other by a pixel defining layer, wherein the
section difference of the pixel defining layer is eliminated by a
second adhesive layer.
29. The organic electroluminescent display panel of claim 28,
wherein the overlapped part of the two adjacent color filters on
the light incident surface of the color filter substrate is in
contact with the pixel defining layer on the array substrate, and
the second adhesive layer is provided with scattering particles
therein.
30. The organic electroluminescent display panel of claim 29,
wherein the scattering particles in the second adhesive layer have
material including any one or more of silicon oxide, zinc sulfide
and zinc selenide.
31. The organic electroluminescent display panel of claim 29,
wherein the second adhesive layer is also provided with water
absorbing particles therein.
32. The organic electroluminescent display panel of claim 31,
wherein the water absorbing particles in the second adhesive layer
have material including barium oxide or magnesium oxide.
33. The organic electroluminescent display panel of claim 28,
wherein the organic electroluminescent devices are white organic
electroluminescent devices.
34. A display device, comprising the organic electroluminescent
display panel of claim 24.
35. A manufacturing method of a color filter substrate, comprising:
forming a plurality of color filters and black matrixes on a first
base, wherein two adjacent color filters are at least partially
overlapped, and each black matrix is at least arranged at the
overlapped position of the color filters; and forming a first
adhesive layer for eliminating section differences between the
adjacent color filters or between the color filters and the black
matrixes on the first base where the above step is completed,
wherein the first adhesive layer is provided with scattering
particles therein.
36. The manufacturing method of the color filter substrate of claim
35, wherein the step of forming a plurality of color filters and
black matrixes on a first base specifically comprises: forming a
pattern comprising the black matrixes on the first base through a
patterning process; forming a pattern comprising first color
filters on the base where the above step is completed through a
patterning process, wherein the first color filters are at least
partially overlapped with the black matrixes; and forming a pattern
comprising second color filters on the base where the above steps
are completed through a patterning process, wherein the second
color filters are at least partially arranged at the overlapped
positions of the first color filters and the black matrixes.
37. The manufacturing method of the color filter substrate of claim
35, wherein the step of forming a plurality of color filters and
black matrixes on a first base specifically comprises: forming a
pattern comprising first color filters on the first base through a
patterning process; forming a pattern comprising second color
filters on the base where the above step is completed through a
patterning process, wherein the second color filters are at least
partially overlapped with the first color filters; and forming a
pattern comprising the black matrixes on the base where the above
steps are completed through a patterning process, wherein the black
matrixes are at least partially arranged at the overlapped
positions of the first color filters and the second color filters.
Description
FIELD OF THE INVENTION
[0001] The present invention belongs to the field of organic
electroluminescent display technology, and particularly relates to
a color filter substrate and a manufacturing method thereof, an
organic electroluminescent display panel and a display device.
BACKGROUND OF THE INVENTION
[0002] The basic structure of an organic electroluminescent device
(e.g. OLED) includes an anode layer, a cathode layer and a
"luminescent layer" sandwiched between the anode layer and the
cathode layer, wherein the luminescent layer includes one or more
organic layers. Under the action of an external voltage, electrons
and holes are respectively injected into the organic layers from
the cathode and the anode and then migrated and compounded in the
"luminescent layer" to produce excitons, and the energy of the
excitons is attenuated in the form of light, namely light is
radiated.
[0003] In the luminescent process of the organic electroluminescent
device, energy loss is mainly on two aspects. First, when injected
carriers emit light by coupling in the luminescent layer, not all
injected energy is transformed into photons, a part of energy of
the excitons is lost by a non-radiative transition process such as
lattice vibration or deep-level impurity transition, and this
process may be described with internal quantum efficiency. Second,
only about 20% of light emitted from the luminescent layer may
penetrate through the device to enter air after passing through
above multilayer structures and is seen due to total reflection
occurring on the interfaces between the anode layer and a base of
the organic electroluminescent device, between the base and air and
the like, a waveguide mode occurring on the interface between the
anode layer and the luminescent layer of the organic
electroluminescent device, surface plasma loss nearby metal
electrodes and the like.
[0004] As shown in FIG. 1, an organic electroluminescent display
panel includes a color filter substrate and an array substrate
subjected to cell aligning, gaps formed after cell aligning of the
color filter substrate and the array substrate are filled with an
adhesive layer 300, color filters 101 and black matrixes 102 are
arranged on a first base 100 of the color filter substrate, and
organic electroluminescent devices (which are obtained by defining
an organic electroluminescent material layer 201 with a pixel
defining layer 202) are arranged on a second base 200 of the array
substrate. Due to the loss of energy in the luminescent process of
the organic electroluminescent device, the light output efficiency
of the organic electroluminescent device is low, then the light
output efficiency of the organic electroluminescent display panel
is low, and the display effect is poor.
SUMMARY OF THE INVENTION
[0005] The technical problem to be solved by the present invention
is to provide a color filter substrate with improved light output
efficiency and a manufacturing method thereof, an organic
electroluminescent display panel and a display device, which can
solve the problem that an existing organic electroluminescent
display panel is low in light output efficiency.
[0006] The technical solutions adopted for solving the technical
problems of the present invention involve a color filter substrate,
including a first base, and a plurality of color filters and black
matrixes arranged on the first base, wherein two adjacent color
filters are at least partially overlapped, and each black matrix is
at least partially arranged at the overlapped position of the two
adjacent color filters; and wherein the color filter substrate
further includes a first adhesive layer for eliminating section
differences between the adjacent color filters or between the color
filters and the black matrixes, and the first adhesive layer is
provided with scattering particles therein.
[0007] The first adhesive layer of the color filter substrate of
the present invention is provided with the scattering particles,
which may scatter light coming from a display light source, so that
the light is more divergent and softer and the uniformity of the
light is improved. In addition, in the present invention, the two
adjacent color filters are at least partially overlapped, and the
overlapped part of the two color filters is also equivalent to a
black matrix; meanwhile, each black matrix on the color filter
substrate is at least partially arranged at the overlapped position
of the two adjacent color filters, which is equivalent to
increasing the thickness of the black matrixes on the color filter
substrate; and it could be understood that, a color filter with a
color (that is, corresponding to a sub-pixel) is arranged between
two adjacent black matrixes, and under such a condition, because
the thickness of the black matrixes is increased, the light
corresponding to the sub-pixel may be effectively prevented from
being scattered to a sub-pixel adjacent to the sub-pixel after
being scattered by the scattering particles, and thus brightness
loss is avoided.
[0008] Preferably, the black matrixes are arranged on the first
base, and the overlapped part of the two adjacent color filters is
above each black matrix.
[0009] Preferably, the color filters are arranged on the first
base, and each black matrix is arranged above the overlapped part
of the two adjacent color filters.
[0010] Preferably, the scattering particles have material including
any one or more of silicon oxide, zinc sulfide and zinc
selenide.
[0011] Preferably, the first adhesive layer is also provided with
water absorbing particles.
[0012] Further preferably, the water absorbing particles have
material including barium oxide or magnesium oxide.
[0013] The technical solutions adopted for solving the technical
problems of the present invention involve an organic
electroluminescent display panel, including the above color filter
substrate and an array substrate which is cell-aligned with the
color filter substrate.
[0014] The organic electroluminescent display panel including the
color filter substrate has high light output efficiency and good
display effect.
[0015] Preferably, the array substrate includes a second base and a
plurality of pixel units arranged on the second base, each pixel
unit includes a plurality of organic electroluminescent devices,
and the adjacent organic electroluminescent display devices are
isolated from each other by a pixel defining layer, wherein the
section difference of the pixel defining layer is eliminated by a
second adhesive layer.
[0016] Further preferably, the overlapped part of the two adjacent
color filters on the light incident surface of the color filter
substrate is in contact with the pixel defining layer on the array
substrate, wherein the second adhesive layer is provided with
scattering particles therein.
[0017] Further preferably, the scattering particles have material
including any one or more of silicon oxide, zinc sulfide and zinc
selenide.
[0018] Further preferably, the second adhesive layer is also
provided with water absorbing particles therein.
[0019] Further preferably, the water absorbing particles have
material including barium oxide or magnesium oxide.
[0020] Preferably, the organic electroluminescent devices are white
organic electroluminescent devices.
[0021] The technical solutions adopted for solving the technical
problems of the present invention involve a display device,
including the above organic electroluminescent display panel.
[0022] The display device in this embodiment has a good display
effect as including the organic electroluminescent display
panel.
[0023] The technical solutions adopted for solving the technical
problems of the present invention involve a manufacturing method of
a color filter substrate, including the following steps:
[0024] forming a plurality of color filters and black matrixes on a
first base, wherein any two adjacent color filters are at least
partially overlapped, and each black matrix is at least partially
arranged at the overlapped position of the color filters; and
[0025] forming a first adhesive layer for eliminating section
differences between the adjacent color filters or between the color
filters and the black matrixes on the first base where the above
step is completed, wherein the first adhesive layer is provided
with scattering particles therein.
[0026] Preferably, the step of forming a plurality of color filters
and black matrixes on a first base specifically includes:
[0027] forming a pattern including the black matrixes on the first
base through a patterning process;
[0028] forming a pattern including first color filters on the base
where the above step is completed through a patterning process,
wherein the first color filters are at least partially overlapped
with the black matrixes; and
[0029] forming a pattern including second color filters on the base
where the above steps are completed through a patterning process,
wherein the second color filters are at least partially arranged at
the overlapped positions of the first color filters and the black
matrixes.
[0030] Preferably, the step of forming a plurality of color filters
and black matrixes on a first base specifically includes:
[0031] forming a pattern including first color filters on the first
base through a patterning process;
[0032] forming a pattern including second color filters on the base
where the above step is completed through a patterning process,
wherein the second color filters are at least partially overlapped
with the first color filters; and
[0033] forming a pattern including the black matrixes on the base
where the above steps are completed through a patterning process,
wherein the black matrixes are at least partially arranged at the
overlapped positions of the first color filters and the second
color filters.
BRIEF DESCRIPTION OF THE DRAWINGS
[0034] FIG. 1 is a schematic diagram of an organic
electroluminescent display panel in the prior art;
[0035] FIG. 2 is a schematic diagram of a color filter substrate in
embodiment 1 of the present invention;
[0036] FIG. 3 is another schematic diagram of the color filter
substrate in embodiment 1 of the present invention;
[0037] FIG. 4 is a schematic diagram of an organic
electroluminescent display panel in embodiment 2 of the present
invention; and
[0038] FIG. 5 is another schematic diagram of the organic
electroluminescent display panel in embodiment 2 of the present
invention.
[0039] Reference numerals: 100, first base; 101, color filter; 102,
black matrix; 103, first adhesive layer; 200, second base; 201,
organic electroluminescent material layer; 202, pixel defining
layer; 203, second adhesive layer; 300, adhesive layer.
DETAILED DESCRIPTION OF THE EMBODIMENTS
[0040] To make those skilled in the art better understand the
technical solutions of the present invention, the present invention
will be further described in detail below in combination with the
accompanying drawings and specific embodiments.
Embodiment 1
[0041] As shown in FIG. 2 and FIG. 3, this embodiment provides a
color filter substrate, including a first base 100, and color
filters 101 and black matrixes 102 arranged on the first base 100,
wherein two adjacent color filters 101 are at least partially
overlapped, and each black matrix 102 is at least partially
arranged at the overlapped position of the two adjacent color
filters 101, and the color filter substrate further includes a
first adhesive layer 103 for eliminating section differences
between the adjacent color filters 101 or between the color filters
101 and the black matrixes 102, and the first adhesive layer 103 is
provided with scattering particles.
[0042] The first adhesive layer 103 of the color filter substrate
in this embodiment is provided with the scattering particles, which
may scatter light coming from a display light source, so that the
light is more divergent and softer and the uniformity of the light
is improved. In addition, in this embodiment, the two adjacent
color filters 101 are at least partially overlapped, and the color
filters 101 at the overlapped position are equivalent to a black
matrix 102; meanwhile, each black matrix 102 on the color filter
substrate is at least partially arranged at the overlapped position
of the two adjacent color filters 101, which is equivalent to
increasing the thickness of the black matrixes 102 on the color
filter substrate; and it could be understood that, a color filter
with a color (that is, corresponding to a sub-pixel) is arranged
between two adjacent black matrixes 102, and in this case, because
the thickness of the black matrixes 102 is increased, the light
corresponding to the sub-pixel may be effectively prevented from
being scattered to a sub-pixel adjacent to the sub-pixel after
being scattered by the scattering particles, and thus brightness
loss is avoided.
[0043] It should be noted that, first, it is very difficult to
simply thicken the black matrixes 102 due to the limitations of
processes in the prior art; and second, the color filter substrate
of this embodiment is particularly applicable to an organic
electroluminescent display device, as shown in FIG. 4, the color
filter substrate is cell-aligned with an array substrate, a
plurality of organic electroluminescent devices (which are obtained
by defining an organic electroluminescent material layer 201 with a
pixel defining layer 202) are arranged on the array substrate, an
organic electroluminescent device corresponds to a sub-pixel, light
emitted by the organic electroluminescent devices is scattered by
the scattering particles in the first adhesive layer on the color
filter substrate, and then the light of each sub-pixel is limited
by the relatively thickened black matrixes 102, so that the
brightness and display effect of the organic electroluminescent
display device may be effectively improved.
[0044] Preferably, as shown in FIG. 2, the color filters 101 are
arranged on the first base 100, and each black matrix 102 is
arranged above the overlapped part of the two adjacent color
filters 101. Of course, preferably, as shown in FIG. 3, in this
embodiment, the black matrixes 102 are arranged on the first base
100, and the overlapped position of the two adjacent color filters
101 is above the black matrix 102.
[0045] In this embodiment, the scattering particles are preferably
made of any one of silicon oxide, zinc sulfide and zinc selenide.
Of course, the scattering particles may also be made of other
scattering materials such as metal oxides and high molecular
polymers.
[0046] After cell aligning of the color filter substrate and the
array substrate, some gaps are inevitably formed between the two
substrates, and then oxygen, moisture, water and other substances
may exist. In this case, preferably, the first adhesive layer 103
is further provided with water absorbing particles which may ensure
that the structure formed after cell aligning of the color filter
substrate and the array substrate is in a dry environment to
prevent moisture, water and other substances from damaging
components on the color filter substrate and the array
substrate.
[0047] Further preferably, the water absorbing particles are made
of barium oxide, magnesium oxide, zeolite or the like, and may also
be made of other materials with water absorbency, of course.
Embodiment 2
[0048] As shown in FIG. 4 and FIG. 5, this embodiment provides an
organic electroluminescent display panel, including the color
filter substrate in embodiment 1 and an array substrate which is
cell-aligned with the color filter substrate.
[0049] In this embodiment, the organic electroluminescent display
panel including the color filter substrate in embodiment 1 has high
light output efficiency and ensures good uniformity of light.
[0050] Preferably, the array substrate includes a second base 200
and a plurality of pixel units arranged on the second base 200,
wherein each pixel unit includes a plurality of organic
electroluminescent devices, and the adjacent organic
electroluminescent display devices are isolated from each other by
a pixel defining layer 202, wherein the section difference of the
pixel defining layer 202 is eliminated by a second adhesive layer
203. Because the section difference on the light output surface of
the array substrate is eliminated by the second adhesive layer 203,
almost no gaps are formed between the color filter substrate of
embodiment 1 and the array substrate after cell aligning of the two
substrates, and thus oxygen, moisture, water and the like do not
exist.
[0051] It should be noted that, as shown in FIG. 4, the second
adhesive layer 203 is merely used for eliminating the section
difference of the pixel defining layer 202; or as shown in FIG. 5,
the second adhesive layer 203 is a planarization layer higher than
the pixel defining layer 202, and is partially arranged above the
pixel defining layer 202.
[0052] As shown in FIG. 4, preferably, the overlapped part of the
two adjacent color filters 101 on the light incident surface of the
color filter substrate is in contact with the pixel defining layer
202 on the array substrate, wherein the second adhesive layer 203
is provided with scattering particles therein. In this case, the
light emitted by the organic electroluminescent devices may be
further scattered, so that the display effect is better.
[0053] In this embodiment, the scattering particles in the second
adhesive layer 203 are preferably made of any one of silicon oxide,
zinc sulfide and zinc selenide. Of course, the scattering particles
may also be made of other scattering materials such as metal oxides
or high molecular polymers.
[0054] To ensure that a dry environment is better kept between the
color filter substrate and the array substrate after cell aligning
of the two substrates, the second adhesive layer 203 is preferably
provided with water absorbing particles. Further preferably, the
water absorbing particles are made of barium oxide, magnesium
oxide, zeolite or the like, and may also be made of other materials
with water absorbency, of course.
[0055] As shown in FIG. 4 and FIG. 5, the color filter substrate
generally includes red, green and blue (R, G and B) color filters
101, so preferably, the organic electroluminescent devices in this
embodiment are white organic electroluminescent devices. Of course,
organic electroluminescent devices emitting light of other colors
may be adopted according to the colors of the color filters 101 on
the color filter substrate.
Embodiment 3
[0056] This embodiment provides a display device, including the
organic electroluminescent display panel in embodiment 2.
[0057] The display device may be any product or component with a
display function, such as a mobile phone, a tablet computer, a
television, a display, a notebook computer, a digital photo frame
or a navigator.
[0058] The display device including the organic electroluminescent
display panel in embodiment 2 has better performance and better
display effect.
[0059] Of course, the display device of this embodiment may further
include other conventional structures, such as a power unit and a
display drive unit.
Embodiment 4
[0060] This embodiment provides a manufacturing method of a color
filter substrate, wherein the color filter substrate may be the one
in embodiment 1. The manufacturing method specifically includes the
following steps:
[0061] Step 1, a plurality of color filters and black matrixes are
formed on a first base, wherein two adjacent color filters are at
least partially overlapped, and each black matrix is at least
arranged at the overlapped position of the two adjacent color
filters.
[0062] This step specifically may be implemented by two
methods:
[0063] I: forming a pattern including the black matrixes on the
first base through a patterning process;
[0064] forming a pattern including first color filters on the base
where the above step is completed through a patterning process,
wherein the first color filters are at least partially overlapped
with the black matrixes; and
[0065] forming a pattern including second color filters on the base
where the above steps are completed through a patterning process,
wherein the second color filters are at least partially arranged at
the overlapped positions of the first color filters and the black
matrixes.
[0066] II: forming a pattern including first color filters on the
first base through a patterning process;
[0067] forming a pattern including second color filters on the base
where the above step is completed through a patterning process,
wherein the second color filters are at least partially overlapped
with the first color filters; and
[0068] forming a pattern including the black matrixes on the base
where the above steps are completed through a patterning process,
wherein the black matrixes are at least partially arranged at the
overlapped positions of the first color filters and the second
color filters.
[0069] A first adhesive layer for eliminating section differences
between the adjacent color filters or between the color filters and
the black matrixes is formed on the first base where the above step
is completed, and the first adhesive layer is provided with
scattering particles therein. Of course, the first adhesive layer
may also be provided with water absorbing particles therein.
[0070] It should be noted that, the manufacturing method of the
color filter substrate in this embodiment may be a traditional
method for manufacturing the color filter substrate, and mainly
differs from the existing manufacturing method in that the formed
first color filters and second color filters are at least partially
overlapped.
[0071] This embodiment further provides a manufacturing method of
an organic electroluminescent display panel, wherein the organic
electroluminescent display panel may be the one in embodiment 2,
and in this case, the color filter substrate of the organic
electroluminescent display panel is manufactured by the above
manufacturing method.
[0072] The manufacturing method of the organic electroluminescent
display panel further includes:
[0073] sequentially forming an organic luminescent material layer
and a pixel defining layer on a second base, wherein a plurality of
organic electroluminescent devices are defined by the pixel
defining layer;
[0074] forming a second adhesive layer on the second base where the
above step is completed, wherein the second adhesive layer may be
provided with scattering particles therein and may also be provided
with water absorbing particles therein at the same time, thus
forming an array substrate; and
[0075] finally, performing cell aligning on the color filter
substrate and the array substrate to form the organic
electroluminescent display panel.
[0076] It could be understood that, the above embodiments are
merely exemplary embodiments adopted for describing the principle
of the present invention, and the present invention is not limited
thereto. Various variations and improvements may be made for those
of ordinary skill in the art without departing from the spirit and
essence of the present invention, and these variations and
improvements are also interpreted as within the protection scope of
the present invention.
* * * * *